45615431 has 2 divisors, whose sum is σ = 45615432. Its totient is φ = 45615430.

The previous prime is 45615421. The next prime is 45615461. The reversal of 45615431 is 13451654.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45615431 - 2¹⁰ = 45614407 is a prime.

It is a super-2 number, since 2×45615431² = 4161535090631522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 45615394 and 45615403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45615421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22807715 + 22807716.

It is an arithmetic number, because the mean of its divisors is an integer number (22807716).

Almost surely, 2^45615431 is an apocalyptic number.

45615431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45615431 is an equidigital number, since it uses as much as digits as its factorization.

45615431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 45615431 is about 6753.9196767507. The cubic root of 45615431 is about 357.3034921809.

The spelling of 45615431 in words is "forty-five million, six hundred fifteen thousand, four hundred thirty-one".